Welcome to the website of the Office of Northwestern District Attorney David E. Sullivan, chief law enforcement official for the Northwestern District of Hampshire and Franklin counties and town of Athol.______________________________Northwestern District AttorneyOne Gleason Plaza | Northampton, MA 01060(413)586-9225Greenfield Office:56 Bank Row | Greenfield, MA 01301(413)774-3186 Click HERE to send us a noteVisit us on Facebook